Add php extension to all data files

Change copied from practo/libphonenumber-for-php@33ff3ca95f1675fbc7fac4cb12d3880b5110b351
Updated metadata to r578

DATA: Update for mobile number patterns for Mali, Fiki, American Samoa,
Trinidad & Tobago, Côte d'Ivoire, Benin, Morocco, Moldova, Kazakhstan,
Cambodia, Bahrain, Algeria, Paraguay, Malaysia, India, Tajikistan and
Nigeria. Contributed by alexandru.manea.